# How to do Mesh Analysis with Current Sources?

Basically the circuit below is what my professor gave us and we need to solve for the the voltage across the 8 ohm resistor, the current through the 2 ohm resistor, power absorbed by the 10 ohm resistor, and the power delivered by the 4 a source. I used regular mesh and I got the wrong values(I checked using KCL and KVL). One thing that I think I got wrong is I assumed that I1 = 3A(feedback). I tried to search the web for a solution and I've seen something called "super mesh". Is this helpful? If yes, can anyone assist me on how to work with it?

Other thing is I want to check if my values are correct using MIT's Circuit Sandbox, however I don't know where should I put the ground so that the circuit will simulate in the way I wanted it to be. Every help is very much appreciated Thanks!

• Show us what you tried. Aug 31, 2014 at 18:32
• I1 = 3A, I2 = 4A, I3 = -4A V8 = (I1 - I3) * 8 = 56V I2ohms = I2 = 4A P1ohm = (I1 - I2) ^ 2 * 1 = 1W basically I'm clueless using mesh in this one Aug 31, 2014 at 18:42
• I would have put the ground at the negative terminal of the 9V dc source. Aug 31, 2014 at 19:12
• I1=3 is ok. But you can't just say that I2=4, I3=-4, only that I2-I3=4. Aug 31, 2014 at 19:36
• Full solution is given hope you understand. Sep 1, 2014 at 6:40